APPARATUS AND METHODS FOR LOSSLESS COMPRESSION OF NUMERICAL ATTRIBUTES IN RULE BASED SYSTEMS

摘要

Disclosed are apparatus and methods for compressing a set of numerical values for a set of feature values, which can be utilized by a rule based or decision tree system. In certain embodiments, the numerical values are transformed into a subset of integer values based on how they are to be analyzed by conditional processes of the rule based or decision tree system that compare such numerical values to one or more threshold values. This transformation is accomplished such that if the rule based or decision tree system is applied after transformation, identical results are produced as compared to the original numerical values being used by the rule based or decision tree system. Other compression techniques may also be applied to the transformed values. An altered rule based or decision tree system, in which threshold values are also transformed to integer values, may be applied to the transformed values. Alternatively, the rule based or decision tree system may be applied to a set of decoded numerical values.